Hoisting apparatus for silos.



vH, SANTROCK. HOISTING APPARATUS FOR SILOSv Ammcmmse man rss. 1s. um

- atemed my 4t, 19H

2 SHEETS-SHEET L H. .SANTRQCKn HQISTING APPARATUS FOR S!LOS. APPucAmM msu fz.za.19m,

,ggygge Paeued May 4, 1915.

2 SNEETS-SHEET 2.

JNVENTOR ffy@ ATTORNEY in section.

operating device. Fig. is a transverse secestaras radiant ersten.

HENRY SANTROCK, 0F" KENSINGTON, KANSAS.

Spe'cii'ication of Letters Patent.

appiicauon sied rebruary ie, i914. serial nu. aimee.

To all whom it may] concern y Be it known that l, HENRY SAN'rnoon, a citizen of the United States, residing at Keny sington, in the county of Smith and State of e Kansas, have invented a new and .useful Hoisting pparatustor Silos, of which the following is a specification.

The invention relates to improvements in hoisting apparatus for silos.

lo The object ofthe present invention is to improve the construction oi' hoisting apparatus for silos and to provide a simple, eilicient, and comparatively inexpensive hoisting apparatus designed particularly for use in pit silos, and adapted to be operated by onel person withina pit and unload itself automatically at the proper elevation, and capa-- ble of enabling such person to haul up as much silage as may be required without leaving the pit before the desired amount is obtained.

lt is also an object of the invention to provide a hoisting device of this character, adapted to be readily transferred 'from one silo pit to another When desired, so that a single hoisting apparatus may be operated in connection with. a number of silos.

YV ith these'and otherl objects in view the invention consists in the construction and novel combination of parts hereinafter fully 95 niinoi' details of construction, within the scope of the claims', may be resorted to with out .departing 'from thespirit or sacrificing any or the advantages of the invention.

In the drawing: Figure iis a side elevai@ tion or1 a hoisting apparatus constructed in accordance with this. invention and vshown app'liedto. n isilo pit, thel bucket being -lowered and thve'ehute being arranged. in a ver- `tical position. Fig. 2 is a Lvertical sectional 45 view of the upper portion of the hoisting 'apparatus, the bucket being elevated and the chute being arranged in an inclined position Jfor discharging the contents of the bucket. Fig. 3 is a front elevation, partly Fig. l isa detail View ofA the tional view of the bucket.

'Like numerals of reference designate corresponding, parts 1n all the figures of the drawings. A

In the accompanying drawing, in which is illustrated the preferred embodiment of the invention, the hoisting apparatus is equipped with a portable main or support ing frame 2 designedto be supported over the top of a silo pit l, by suitable beams or /planking, and adapted to kbe transferred from one silo pit to another. The main or supporting frame may be of any preferred construction and-it `is provided at the top with front and rear bearings 3 for the reception of a horizontal shaft 4 carrying a hoisting drum 5 and a relatively large pulleyy 6 fixed to the drum shaft 4 at the rear end thereof and provided with a groovcd periphery for the reception of an operating rope or cable preferably composed of sections detachably connected with one another by terminal hooks and eyes 8 and 9 toenable tlie oierating ropel to be increased in length as tb e silage of the silo is consumed. By this cnstruction an endless operating rope of the desired length is obtained with out any of it dangling in and lying upon the material in ythe pit. Each of the sections ot' the operating rope is designed to be provided at one end with aneye and at the other end -with a hook, so that the sections of the operating rope mav be varied in num-- ber, as desired. The operating rope which forms the endless `operating connection is maintained taut by a Weight 10 provided with a grooved pulley 1l mounted in a suitable'housing l2" secured to and extending upwardly tronithe said weight. Either side of the depending portion or loop of the The di'um 5 has secured to it one end of a hoisting rope 14, secured at its other end to afbail 15 oa bucket 1G and adapted to be wound around and unwound from the drum to raise and lower the bucket 1 6. The hoisting rope or cable is caused toywind univ formly around the drum by means of a rope guide 17 consisting of a rod or stein provided at one end with a coil 18, which is arranged on the druin- 5. The rod or stein and the eoil may be constructed of a single piece of nod metal, and the coil, which slidably connectwsone end ofthe rod with the druin,is arranged to be engaged by the hoisting rope or cable which passes downhorizontally, may 'be conveniently formed` from a piece of rod metal or other suitable material which is bent at points equidistant of its ends at right angles to provide spaced.l

end portions and a connecting side portion, the end portions being suitably secured to the frame with the side portion arranged in spaced relation with one of the horizontal beams or members of the frame. The beam or member to which the guiding loop 19 is secured is located below the plane of the drum and is beveled at 20 to correspond to the rod or stem which is arranged at an inclination. No claim is made in the present case to the rope guide.

The lower end of the hoisting rope or cable extends through an opening 21 in the bail 15 of the bucket 16, and it is provided with a suitable stop 22, preferably consist ing of a metallic plate or piece which engages the lower face of the bail 15. The

hoisting bucket 16, which is preferably rectangular, is provided with a hinged bottom 23 and it has a hinged door or gate 24 at the front. The bottom 23, which is connected at its rear edge with the side walls o f the bucket by 4a suitable hinge 25, is adapted to swing downwardly, as illustrated in Fig. 2 of the drawings, to discharge its contents, and it is automatically closed by a spring 26 after the bucket has discharged its contents. The spring 26, which is approximately .L-s'haped, is secured to the back of the bucket and it extends downwardlto a point below the bottom thereof and forwardly or outwardly, the free end of the'spring bearing' against the lower face of the hinged bottom ,23 and adapted to urge the same upwardly. The bucket is providedwith interiorly arranged stops 27 which limit the inward or i upward movement of the bottom 23 when 'the bucket is empty. i

r1`he front gate or door 24, which consti tutes the lower section of the frontwall of the bucket, is connected at i't's upper edge to a relativelyfixed upper section 28 of the' front wall by a suitable hinge 29, and it is provided at its lower edge with,y an inwardly extending flange 30 projecting /beneath and constituting a support for the l(:vottom of the bucket when the hinged door or ate is closed. The 'door or gate opens un er the pressure of the contents of the bucket when the latter is elevated, andsthe catches are tripped to release the dopr or gate. The

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a horizontal position. The locking bars 31 are automatically swung downwardly out of engagement with the front door or gate by means of an approximately U-shaped trip y 34 composed of spaced sides and a connectd ing top portion, and straddling the front of thel bucket. The sides of the U-shaped trip are pivoted at their lower ends to the locking bars 31 by rivets 35er other suitable pivots, and the sides of the bucket are provided at their upper portions with guides 36 through which the sides of trip 34e slide. The trip 34 extends above the bucket and it is normally maintained in an elevated position byl a spring 37 which yieldably retains the locking bars in engagement with the front gate or door of the bucket. 'lhe spring 37, which is disposed transversely of the bucket at the front wall thereof, is centrally secured by a 4suitable fastening device 38 to the upper edges of the relatively fixed section 28 of the said front wall of the bucket, and its side portions diverge upwardly and terminate in eyes 39 formed by ceiling or bending the terminals of the spring 37. The eyes 39 are linked into linlis 40 which are arranged on the top connectingportion of the trip adjacent to the sides thereof. When the bucket is elevated, the transverse connecting portion of the trip is carried int'o contact with a horizontal trans.

release the bottom for discharging the conf.

tents of the bucket into a chute 12g .y y. The chute 4 2, which is arranged at an iu-s clination to deliver the contents of the bucket orouter portion within the upper frame by a horizontal pintle rod 43 extending vacross the bottom of the chute and through eyes 4:41

thereof, and mounted at its terminals in the ad] acont upright posts or beams of the portable frame. 'The chute is equipped ,at its rear portion with a bail d5 having a bottoni transverse pivot or pivotal portion i6 een tending beneath the rear portion of the to the desired point, is hinged near its front messes chute and through bottom eyes 47 thereof, whereby the bail is hinged to the chute.' rlhe bail 45, which may be of any preferred,con-

struction, is provided at its rear portionl adapted to swing downwardly from the ini clined position shown in Fig. 2 of the dravvings to the vertical position illustrated in l, when the bucket is lowered, and When the bucket is elevated, the bail thereof engages with the bail of the chute and eleat the upper pbrtion'at 53 to clear the bucket` when the latter` enters and leavesthe chute.

rllhe bucket isgiiided in its vertical movement by means 'of a guiding rope or cable 54 extending through a horizontal guide eye 55 of the bucket and arranged on and depending from an overhead pulley 56, mounted in a suitable bracket 57 secured to the upper portion of the frame 2. The guiding rope 54 is provided at one end wlth a relatively heavy Weight 58 which rests upon the material Wit-hin the silo, and its other end is provided with a relatively small Weight 5S) adapted to maintain the guiding rope taut and permitting the relatively heavy Weight to descend as the material Within the silo is consumed, whereby an eXtensible automatically adjustable guide for the bucket is provided. The bucket is'provided at opposite sides with upwardly projecting lnclined arms 60 aiuanged to engage the transverse bar or member 41 at theinner or rear edge thereof and adapted to steady the bucket during the operation of the trip.

lVhat is claimed is:

l. A hoisting device ci' the class described' including a bucket, hoisting mechanism hav ing a rope or cable connected with the bucket for raising and lowering the latter, operat-` ing mechanism for thel hoisting mechanism provided. with an extensible operating rope having a freependant loop and composed of sections for varying its length, and iiexible guiding means for the bucket automatically adjustable to 'correspond With the travel of the bucket.

2. A. hoisting apparatus of the class described, comprisinga supporting frame, a hoisting bucket, hoisting mechanism for raising and lowering the bucket, and an automatically adjustable or eXtensible guiding means for'the bucket, said guiding means being arranged to rest upon the material Within a silo. i

.3. A hoisting apparatus oi the class described, comprising a supporting frame, a hoisting bucket, hoisting mechanism for raising and lowering the bucket, and guiding means for the bucket consisting of an overhead pulley and a guiding rope arranged on the pulley and provided 4at its ends, with unequal Weights, the heavlier, Weight being adapted to rest uponl the ma terial and the lighter Weight operating to maintain the guiding rope taut, and permitting the heavier Weight to descend and lengthen the eiiective portion of the guiding rope as the material is consumed, and means carried by the bucket and slidable on the guiding rope. f

4. 'A hoisting apparatus of the classdescribed comprising aframe, hoisting mechanism, a bucket connected with the hoisting' mechanism and having a hinged downwardly opening bottom and provided at one of its Walls Witha gate having means for engaging the bottom to retain the latter in its closed position, means for holding the gate in engagement With the bottom, an, means for releasing the said gate.

5. A hoisting apparatus of the class described, comprising a frame hoisting mechanism, a bucket vconnected with the hoisting mechanism Yand having a hinged downwardly opening bottom and provided at one of its Walls -With a gate having means for engaging the bottom to support th latter in its closed position, a catch for locking the gate, and automatically operable means for tri ping the catch.

6. A' hoisting apparatus of the class described, comprising a iframe, hoisting inechanism, a bucket connected With the hoisting mechanism and having a hinged downwardly opening bottom and provided at one of! its Walls with a gatefhaving an inwardly projecting flange at the lower edge-arranged toextend beneath and support said` bottom yin its closed position, a catch for locking the gate in engagement With the bottom, and

means for tripping the catch to release the gate.`

7. A hoisting 'apparatus of the class def scribed, .comprising a frame, hoisting mechanism, a bucket connected with the hoisting mechanism and including a hinged downwardly opening bottom and provided at oneof itswalls with a gate having means for engaging and supporting the bottom'in its osed position,- a spring for urging the botdm upwardly, and means for locking .the

gate in engagement with said bottom. 13o

8. A hoisting apparatus ei" the eiess e seibeoi, comprising a frame, hoisting meehemiem., oueket'eomieeted with the hoisting mechanism end provided et one ef its weils hinged gate, a catch eonsisting of e, bar'pivotaly mounted on the bucket und .provided withv o. lug arranged t0 swinginto sind. out. of engagement with the gate, a yeidebiy supported trip connected with the inciting bei' and maintaining the same in engegement'with the gate, and ineens, mount en the frame 'and eriaiiged in the path of and adapted te engage with the trip, Where' by the hitter is operated to release the gate.

95A hoisting apparatus of the class described, comprising a frame, hoisting mech eniem, e bucket connected with the hoisting mechanism and provided at one of its Walls with a hinged. gate, opposite locking bers "BUI pivotaliy meurited. on the bucket and previ'cied with lugs armnged to swing into and out of enga verpf'ent with the gate, en approxmetely ela 'ed trip struddling the bucket and eonneete with the pivoted bare, a

' spring foiA yieidabiy supporting the trip,

fia-eee,

end mesme loeeteci in the peth oit the trip emi edepted to engage with the seine to reeese thegete.

lf3. A .hoisting epperetue of the class ie-y scinibed, wmpi'ismgg e ieme, hoisting mediu mism, e bucket connected with the hexstmgg mechanism end provided et eme ot its welle with a hinged 'getemppeeite catches meent/ed on the bucket and movable into emi out `oit eiwagement with the gate, e trip eenneeteii ab. the catehes emi composed of? spaced :lilies and, a cennecting portion, the sides being siiebly mouiited'on the bucket, e, bow l 1 spring secured. to the bucket and provied et its terminals with iinks siidebly receiving; the connecting pertion, of the trip, amd. Ineens located in the path of: emi adapte to engage the trip to reieese the gate,

. in testimon that claim the foregoing es my own, i( -ave heieto mxed my signe-l turein the presence of two Witnesses.

HENRY SANTRGCK. Witnesses:

J. H; BALL, E. M. BALL. 

